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Tag: counter

Cat Links Ameteur Radio

GY561 Frequency & Power Meter

Posted on July 18, 2015July 19, 2015 The Engineer

The latest addition to my radio shack is the GY561 frequency & power meter, which has already come in useful for measuring the output power of all my radios. It’s a small device, roughly the same size & weight as a stock UV-5R. Power is provided by 3 AAA cells.

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Cat Links Randoms

SainSmart Frequency Meter

Posted on July 16, 2015July 16, 2015 The Engineer

Thanks to Lewis, M3HHY for lending me this one 🙂 Here’s a quick look at a Sainsmart frequency counter module. These are useful little gadgets, showing the locked frequency on a small LCD display. It’s built around an ATMega328 microcontroller (µC), and an MB501L Prescaler IC. The circuit for this

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Cat Links Hacks, Personal Project, RasPi

Raspberry Pi Geiger Counter

Posted on May 20, 2013 The Engineer

Here’s my latest project with the Pi: interfacing it with the Sparkfun Geiger counter & outputting the resulting data to a character LCD. The geiger counter is interfaced with it’s USB port, with the random number generator firmware. A Python script reads from the serial port & every minute outputs

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Cat Links Hacks, Personal Project

New Feature – Geiger Counter

Posted on October 10, 2012October 10, 2012 The Engineer

Here’s something new, an internet connected Geiger counter! The graph in the sidebar is updated once every 60 seconds, and can be clicked on for a larger version. Measurements are in Counts Per Minute, the graph logs 1 hour of data.   The counter itself is a Sparkfun Geiger counter, with the

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Cat Links Consumer Gear

Sanyo Talkbook VAS

Posted on February 28, 2011February 10, 2011 The Engineer

Here is a Sanyo tape recorder, with built in voice activation. Takes standard audio cassettes. Here visible is the speaker on the left, microphone is on the right of the tape window. The tape counter is at the top. Back cover removed from the unit, showing the PCB & the

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Cat Links Consumer Gear

Current Cost ‘Envi’ CC128 Power Meter

Posted on July 31, 2010August 1, 2010 The Engineer

This is the Current Cost CC128 Real Time Power Meter. Shown here is the display unit, British Gas issued these free to some customers. This unit measures current power draw in Watts, cost of power currently being used (requires unit price to be set), overall kWh usage over the past

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